Maybe this can help you! http://www.premiumbeat.com/blog/after-effects-wiggle-expression/
Greetings, F. 2014-02-14 14:01 GMT-03:00 Wojtek Jakubowski <[email protected]>: > I wrote a little script a few years back. It was working in SI 2011.5, and > should work in later as well. > > Just select some keys in animation editor and run the script a few times > :) (if you want to resample the curve as well. just uncomment the > "oCurve.Resample.." line) > > Play with the last line with math.random function - the values there or > read about random library on some python manual :) It may be very light > change or very large - it depends on what the original values are. > > Remember to save Your work before running the script, just for backup. > > ###PYTHON SCRIPT > ###BEGIN HERE > import math > import random > xsi = Application > > oCurves = xsi.FCurveSelection > > for oCurve in oCurves: > oKeys = oCurve.SelectedKeys > cntKeys = oKeys.Count > > if cntKeys > 0: > tmp = 0 > for oKey in oKeys: > if oKey.Selected == 1: > if tmp == 0: > fKey = oCurve.GetKeyFrame(oKey.index) > tmp = tmp + 1 > lKey = oCurve.GetKeyFrame(oKey.index) > firstKey = math.floor(fKey) > lastKey = math.ceil(lKey) > # oCurve.Resample(firstKey, lastKey, 2.0) #uncomment this line to apply > resampling between first and last key selected. > KeysCollection = oCurve.GetKeysBetween(firstKey, lastKey) > for oKeyz in KeysCollection: > keyNow = oKeyz.index > # move key by random number > oKeyz.Value += (random.random() - 0.5 ) * 0.3 #change this values or use a > different random - it will depend on what the original values are > > ###END HERE > > > > > On Fri, Feb 14, 2014 at 2:48 PM, Rob Wuijster <[email protected]> wrote: > >> Hi all, >> >> I ran into this before, but never really found a quick and dirty solution. >> >> What I'm after is to select a bunch of equal keyframes in the Animation >> Editor, and randomize them in time. >> e.g. 20 objects going from left to right, frame 1 to 100. Now randomize >> start and end keys on the f-curves within 25 frames or so. >> >> I did some digging and found an old script set for f-curve manipulation >> from Juan Brockhaus, but those don't work anymore in SI2013SP1. >> >> One would expect to have the r(x,y) or l(x,y) commands work in the Frame >> box in the AE by now, but strangely enough no.... >> So if anyone has a simple solution, or a simple script that would be >> great. >> >> -- >> >> cheers, >> >> Rob >> >> \/-------------\/----------------\/ >> >> >
